Switch-stand



(No Model.)

0. H. ROUND, G. A. SAMMIS v8v C. KERN.

SWITCH STAND.

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UNITED STATES PATENT ENCE.

OLIN H. ROUND, GEORGE A. SAMMIS, AND CRISS KERN, OF LEMARS, IOWA.

STA'N D.

SPECIFICATION :forming part of Letters Patent No. 595,7 35, dated December 21, 189'?.`

Application filed March 16, 189 7.v

To a/ZZ whom, it may concern.-

Be it known that we, OLIN H. ROUND, GEORGE A. SAMMIs, and CEIss KERN, citizens of the United States, residing at Lemars, in the county of Plymouth and State of Iowa, have invented a new and useful Switch-Stand, of which the following is a specification.

This invention relates to switch-stands for operating railway-switches, its object being to provide a switch-stand by means of which two switches maybe independently operated and one of the switches be locked in position while the other is being operated, or both may be locked at the same time.

WVith this and other objects in view the invention consists in the several details of construction and combination of parts hereinafter fully described, and particularly pointed out in the claim.

In the drawings, Figure 1 is an elevation, partly in section, of a switch-stand embodying our invention. Fig. 2 is a plan view of the switch-stand, with the top plate partly broken away to show the arrangementof the gearing. Fig. 3 is a front edge view of the gearing, the shafts being broken away. Fig. 4 is a perspective view of the main operatinggear. Fig. 5 is a similar view of the gear on the switch-shaft.

Similar reference-numerals indicate similar parts in the several figures.

1 indicates a standard extending upwardly from the base-plate 2 and having at its upper end a plate 3, which is provided with three openin gs, (indicated by 4.) The standard is hollow, and through it extends the lever-shaft 5, which is stepped at its lower end in the base 2 and projects upwardly through one of the openings 4 in the plate 3.

6 and 7 are switch-shafts also stepped in the base 2 on opposite sides of the shafts 5, and these shafts are supported at their upper ends in the other openings- 4, through which they project a short distance. Each shaft is providedat its lower end with a crank, (indicated by 8,) to which cranks are connected rods 9, which lead to the switches. (Not shown.)

10 indicates a mutilated gear which is rigidly secured on the shaft 5 immediately above the plate 3, and 11 and 12 are gears on the upper ends of the shafts 6 and 7, respec- ASerial No. 627,844. (No model.)

tively, immediately above the plate 3, and these gears are adapted to mesh with the teeth on the gear 10. The gears 11 and 12 may also be mutilated, if preferred, but this is immaterial. On a plane above its teeth the gear 10 is provided with a segmental iiange 13, which projects beyond that portion of the gear which has no teeth sufficiently to overlap the teeth on the 'gears 11 and 12. The gears 1l and 12 are each provided with a disk 14 of less diameter than the gears, and these disks are on a plane above the teeth of the respective gears. The disks 14 are each provided with a curved recess 15, into which the segmental Ilange 13 on the gear is adapted to fit, and when the flange is engaged in the recesses 15 the shafts 6 and 7 will be locked against turning, and consequently the switches operated by them will also be locked against movement. Preferably the disks 14 and the segmental flange 13 will be formedintegrally with their respective gears; but it is evident that the disks 14 and the flange may be formed separately from the disks and keyed to the several shafts in the proper positions.

16 indicates a casing to cover the gears, which casing may be bolted or otherwise secured to the plate 3. The top plate 17 of the casing is provided with an opening 18, through which the shaft 5 extends upwardly, and this shaft may be provided with the usual target 19 or other signaling device.

2O represents a lever rigidly connected at one end to the shaft v5 above the casing 16, and this lever is made in two sections hinged together at 21. The handle portion22 of the lever is adapted to turn down and viit between either of the pairs of ears 23, which project outwardly from the edge of the casing 16 and be locked therein by a pin 24 or other suitable locking device.

The operation of the device is as follows: When the parts are in the position indicated in Fig. 2, both switches will be locked by means of the engagement of the ange13 in the recesses 15 in the two disks 14, and the lever will be locked between the middle pair of ears 23. If it is desired to operate the switch controlled by the shaft '7, the lever 20 will be turned to the left, thereby turning the mutilated gear 10, and as the gear is turned the IOO flange 13 will pass out of engagement with the recess l5 in the disk on the gear 12 and thereby permit the shaft 7 to be turned. During this movement the iiange 13 will be kept in engagement with the recess 15 in the diskV on the shaft 6, and consequently this shaft will remain looked. It is evident that by turning the lever 2O to the right the shaft 6 would be operated, while the shaft 7 would be held looked by means of the iange 13 en` gaging the recess 15 in the disk on the shaft 7.

It will be understood that changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

Having thus described our inventiom'what we claim is-I In a switoh-standhe combination with two switch-operating shafts and an intermediate lever-shaft, of a mutilated gear on the levershaft, a gear on each of the switch-shafts, a segmental ange on the lever-shaft gear overlapping the gears on the switch-shafts, and disks on the switch-shafts above the gears, each provided with a curved recess with which the said ilange is adapted to engage, substantially as described. A

In testimony that we claim the foregoing as our own we have hereto affixed our signatures 3o in the presence of two Witnesses.

OLIN H. ROUND. GEORGE A. SAMMIS. CRISS KERN.

Witnesses:

4Gr. T. STRUBLE, O. AnAMsoN. 

